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# What Is Period and Frequency?

Frequency refers to how often something happens. Period refers to the time it takes something to happen. Frequency is a rate quantity. Period is a time quantity. Frequency is the cycles/second.

## What Is Period and Frequency?

Period and frequency are two very important concepts in physics. Period is the time it takes for an object to complete one full cycle, while frequency is the number of times an object completes a cycle in a given period of time.

In order to understand these concepts, it is important to first understand what a wave is. A wave is a disturbance that travels through a medium, such as air or water.

Waves are created when something vibrates, such as a tuning fork or a person singing. The vibrating object creates waves that travel through the medium and eventually reach our ears, where they are converted into sound.

The period of a wave is the time it takes for the wave to complete one full cycle. The frequency of a wave is the number of times the wave completes a cycle in a given period of time.

For example, if a tuning fork vibrates 100 times in one second, its frequency is 100 Hz. Period and frequency are inversely related, which means that as one increases, the other decreases.

This is because the higher the frequency of a wave, the more times it will complete a cycle in a given period of time. For example, if the frequency of a wave is doubled, the wave will complete two cycles